After his education (probably in Freiburg im Breisgau) Wenzinger
travelled to Strasbourg, Rome and Paris. From 1745 onwards he
worked from Freiburg. In 1748 he decorated Schloss Ebnet near
Freiburg. From 1757 to 1760 he directed the decoration of the
Stiftskirche St. Gallen. From 1761 onwards he lived and worked
at a house at the Freiburger Münsterplatz that was known as
"Zum Schönen Eck". He died as a rich man in 1797 in Freiburg.